### How Many Frenchmen Can’t Be Wrong?

$\bullet$Excel 2007 outwitted by 5-digit number (hat-tip: Jorn).
$\bullet$The “infamous trick of adding in zero”, illustrated. Ah-ha. Now I get it.

1. Hi, just thought that I would say thanks for pointing the ‘a’ conditon here. (I can’t publish the comment yet, and will edit the post as soon as possible).

2. the excel story done right, by mark cc.

1. 1 SocialRank (and MathBloggers) is now live « Learning Computation

[…] entries seemed like peculiar choices. Vlorbik wonders how his own blog got so highly rated. His particular entry that made the list was about the Excel number formatting error that was a big news item last week; […]

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Vlorbik On Math Ed ('07—'09)
(a good place to start!)